5. Vert 2

Andrej Mihelic

Converting liters into gallons? What about dollars into pounds? While conversion pages have remained a slightly random page in paper diaries and organizers for years, Vert 2 has brought these practical tools into the digital age.

Featuring an elegant interface, it is probably the best looking way of working out everything from currency exchanges and fuel consumption, to density and pressure — plus a whole load more options as well — we’ve seen.